Bench-vise.



PATENTED JAN. 28, 1908.

J. G. BAKER. BENCH VISB. APPLIGATION IiLED r213, 26. 1907.

JOSEPH G. BAKER, OF PHILADELPHIA, PENNSYLVANIA.

BENCH-VISE.

- Specification of Letters Patent.

Patented Jan. 28, 1908.

Application filed February 25. 1907. Serial No. 359297.

T 0 all whom it may concern:

Be it known that I, JosEPn G. BAKER, a citizen of the United States,residing at Philadelphia, county of Philadelphia, and State ofPennsylvania, have invented a certain new and useful Improvement inBench-Vises, of which the following is a specification.

My invention relates to a new and useful improvement in bench vises, andhas for its object to provide an exceedingly simple and effectivearrangement by which the operating screw of such a vise may be assembledin its proper position relative to the movable jaw and tail-blockwithout the use of movable plates or screws, and a further object of myinvention is to so construct the clamp screw and clamp of a vise thatthe latter may be swiveled upon the former by bending it around theshank thereof.

With these ends in view, this invention consists in the details ofconstruction and combination of elements hereinafter set forth and thenspecifically designated by the claims.

In order that those skilled in the art to which this inventionappertains may understand how to make and use the same, I will describeits construction in detail, referring by letter to the accompanyingdrawing forming a part of this specification, in which Figure l is anelevation of a vise made in accordance with my improvement, a portionthereof being broken away and sectioned to clearly show the operatingscrew in its assembled position. Fig. 2, a section at the line a;9c ofFig. 1. Fig. 3', asection of a portion of the movable jaw. Fig. 4, adetail view of a portion of the clamp screw, the clamp being removed.Fig. 5, a similar view of the clamp before it is bent around the shankof the screw. Fig. 6 is a sectional view showing the attachment of thenut to the stationary aw.

In carrying out my invention as here embodied, A represents the body ofthe vise, which may be of any suitable design and adapted to be securedto the bench in any Y suitable manner, the means here shown for thatpurpose consisting of a depending bracket B and the clamp screw 0threaded therethrough. The upper end of the clamp screw has a shank aformed thereon which is larger at the top than at the bottom, as clearlyshown in Fig. 4, and around this shank is swiveled the clamp l), whichlatter is made of malleable metal having a button hole slot (Z formedtherein as shown in Fig. 5, so that to assemble the clamp and screw itis only necessary to place the former around the latter and bend itsufficiently to close the button hole slot, thus leaving the clampswiveled upon the shank.

D represents the movable aw, with which is formed the tailblock E, andin the base of this jaw is formed a slot or groove F, in which the shankG of the operating screw H is adapted to fit, the lower portion of saidgroove being open in order that the shank may be set within this grooveor slot.

I is a collar carried by the operating screw, adapted to [it in theenlargement of the slot F and held in place by the pine, while Jrepresents the head of the operating screw,

which is adapted to bear against the outer surface of said base, thuspreventing the operating screw from having any longitudinal movementindependent of the movable jaw. The nut K is secured upon the stationaryjaw by means of the pin K, so that the tail-block may slide thereoverand the operating screw be threaded therein by which the jaw D is movedback and forth in the usual manner. It is to be noted that the nut K isset considerably.forward in order that the jaw D may be opened to agreater extent than is usual. and also to better support the operatingscrew and prevent it from sagging down at the front end.

If found desirable the pin 6 may be set just beneath the shank G of theoperating screw so as to further prevent any sagging of this operatingscrew at its outer end.

By my improvement considerable time and annoyance is saved in theassembling of a vise of this description, since it is only necessary toplace the shank G within the slot F and slide the tail-block into placesufficient to start the end of the operating screw in the nut K.

Having thus fully described my invention, What I claim as new anduseful, is-

1. A movable jaw having formed in the base thereof a channel, anoperating screw which is adapted to fit within said channel a collar anda head integral with said screw said channel provided with grooves forthe reception of said collar and head, a pin lo cated in said jaw andextending transversely of the channel beneath the screw and upon ghcichthe screw is adapted to rest as speci- 2-. In combination a stationary jaw, a nut secured therein, a tail block adapted to slide over said nutand provided with a jaw, the base of said jaw having a channel thereinand countersunk grooves on the sides of said.

, channel, a screw adapted to thread into the nut, a shank provided withan integral collar formed with said screw and adapted to engage withsaid countersunk grooves in the base of the jaw, a head formed with theouter end of the screw and ada ted to bear against the base, anda-removab e pin located in the base of the jaw and transversely of thech annel beneath the shank of the screw and between the collar and headthereof.

3. In a vise of the character described, a clamp screw provided with atapered end and a swiveled clamp thereon said clamp consisting of afrusto -conical split annulus of sheet metal.

In testimony whereof, I have hereunto

